JPS5951298B2 - oral cleaning device - Google Patents

Description

Detailed Description of the Invention The present invention uses high-pressure pulsating fluid to drive a toothbrush and jet water at the same time, thereby preventing tooth decay by removing plaque and foreign matter adhering to the teeth, and preventing alveolar pyorrhea due to the pine surge effect. The present invention also relates to an oral cavity cleaning device that is characterized by being able to perform treatment effectively and in a short period of time.

In general, there are two types of oral cleaning devices: a toothbrush type and a type that uses a pump device to spray high-pressure water from the nozzle tip.The former toothbrush type is easy to clean and has an excellent effect on removing plaque. Due to its structure, it has the disadvantage that plaque and foreign matter remain in areas that are difficult to reach with a brush, such as in the gaps between teeth.

On the other hand, the latter type, which sprays high-pressure water, is excellent at removing foreign substances such as food scraps stuck in the gaps between teeth and between teeth and gums, and uses a pulsating jet to improve blood circulation in the gums. Although it is effective in preventing and treating alveolar pyorrhea, unfortunately, it is less effective and insufficient in removing plaque attached to the tooth surface.

In this way, there are advantages and disadvantages to both, and as seen in reports from the Oral Hygiene Society, etc., in order to obtain a satisfactory cleaning effect,
It is necessary to use both together.

By the way, using both of the above separately is not only time consuming but also extremely troublesome.

In addition, manual toothbrushes have problems such as individual differences in cleaning effectiveness and tiring hands.

Therefore, electric toothbrushes that move automatically have recently become available on the market, but in order to obtain a satisfactory cleaning effect, it is necessary to use a high-pressure water jet type in combination with an electric toothbrush, as mentioned above. Therefore, it has little effect on time and trouble reduction, and it is a heavy economic burden to have expensive products such as a high-pressure water jet type and an electric brush.

Moreover, the storage space for these devices is relatively small in the washrooms of ordinary homes, and it takes a considerable amount of space to equip and use each of the above devices, which is inconvenient.

Furthermore, products that integrate a high-pressure water jet type and an electric brush, and those that integrate a high-pressure water jet and a water-pressure driven brush have been devised, but these all include a pick with a nozzle for high-pressure water jet, Prepare two types of toothbrushes separately.
As mentioned above, in order to improve the cleaning effect, it is necessary to replace both of them, which not only causes the trouble of attaching and detaching them, but also takes time and is inefficient.

For this reason, the user ends up using only one of the two functions, and in practice, the two functions are hardly able to exhibit their effects.

Furthermore, a major drawback is that using only a high-pressure jet and not using a toothbrush does not remove enough plaque, as mentioned above, and is not useful for preventing dental diseases.

From this point of view, the all-in-one type that can be used as a toothbrush and a toothpick imposes unnecessary trouble and financial burden on the user, while at the same time making it impossible for a large number of unspecified users to learn how to use it.

It is not possible to fully demonstrate the original effect.

Furthermore, it is clear that problems such as dental problems may arise even if the user constantly uses the product.

The present invention solves the above-mentioned drawbacks at once, and provides an oral cavity cleaning device that has a satisfactory oral cavity cleaning effect and a gum surge effect in an extremely short period of time.

In addition, the present invention provides a reliable cleaning effect using a toothbrush and a pulsating jet stream to remove plaque and remove plaque from the teeth, even for an unspecified number of users.
To provide an oral cavity cleaning device configured to exhibit a foreign body removal effect and a pine surge effect.

Furthermore, the present invention not only does not cause any trouble or inefficiency to an unspecified number of users when using it, but also enables it to be used more easily and reliably than any of the above types, and in a shorter time. An object of the present invention is to provide an oral cavity cleaner that can clean extremely efficiently.

The present invention provides an oral cavity cleaning device which has excellent advantages and novelty as described above, and which makes a great contribution to oral cavity cleaning.

The present invention provides an extremely easy-to-use oral cavity cleaner that can adjust the flow rate of the jet water flow from 0 to the maximum while maintaining the deflection angle of the toothbrush within an appropriate range using a flow rate adjustment device provided in the pump device. It is something to do.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the external configuration of the present invention.

In the figure, a pump device 1 that generates high-pressure pulsating flow is
It is connected to the toothbrush section unit 3 by a single flexible conduit 2.

The flexible conduit 2 connects the pump device 1 and the toothbrush unit 3.
There is a reciprocating flow path for high-pressure pulsating flow between the two.

The pump device 1 includes a water tank 4, a pump inside an exterior case 5, and a drive section.

The exterior case 5 is provided with an operating knob 6 for a power switch, a flexible conduit 2, and a holding section 7 for the toothbrush unit 1-3.

A lid 4' is provided on the top of the tank 4 to keep the inside of the tank 4 clean when not in use.

A toothbrush 8 capable of ejecting high-pressure pulsating diene I is removably inserted into the toothbrush units 1 to 3.

In addition, during actual use, it is desirable to adjust the flow rate of the pulsating jet ejected from the toothbrush 8, and the pump in the outer case 5 is provided with a flow rate adjustment device so that the flow rate can be adjusted in conjunction with the operation knob 6. ing.

In actual use, after inserting the toothbrush 8 into the toothbrush units 1 to 3 and supplying water to the water tank 4, turn the operating knob 6 to turn on the power.The pump device 1 generates a high-pressure pulsating flow. , the toothbrush unit l- via the flexible conduit 2
3, and the toothbrush 8 is driven.

As the operating knob 6 is rotated, the toothbrush 8 gradually becomes stronger until it reaches the set maximum appropriate deflection amount.

Further, by rotating the operating knob 6, the strength of the pulsating diene l- flowing out from the toothbrush 8 can be gradually increased while maintaining the appropriate amount of vibration.

That is, in the present invention, the flow rate of the pulsating jet flowing out from the toothbrush 8 is maintained at 0, and the vibration of the toothbrush 8 is adjusted within an appropriate range from weak to strong, using a flow rate adjustment device that is linked to the operation knob 6 of the power switch. Therefore, even if you want to use a kneaded brush because of your habit, you can use it without any problems because the kneaded brush will not be washed away.

Furthermore, the present invention allows the flow rate of the pulsating jet flowing out from the toothbrush 8 to be adjusted from 0 to the maximum while maintaining the vibration of the toothbrush 8 when the flow rate of the pulsating jet flowing out from the toothbrush 8 is 0. It is an oral cleaning device that can be used with the aforementioned toothbrush and high-pressure water diene I at the same time, and can reliably perform both functions for an unspecified number of users, and has excellent cleaning and pine surge effects. It provides:

Details will be described below with reference to figures showing examples.

2 to 4 show the structure of the pump device 1. FIG.

Usually, the water tank 4 is provided with a filter 41 in the water supply section for filtering out foreign substances mixed in the wash water, and a valve 42 to prevent leakage during water supply.

When this water tank 4 is inserted into the upper part of the case 5, the valve 42 is pushed up by the valve pushing part 52 provided on the case 5 side, and the wash water flows into the pump chamber 44.

Note that a sealing material 43 prevents leakage between the water tank 4 and the case 5.

The screws 1 to 1 in the pump chamber 44 are attached to a piston valve 53 made of an elastic material such as a folded velofram at the tip attachment part 48 of the piston rod 50, and a retainer plate 47 which also serves to prevent eccentricity of the piston valve 53. Hold with screw 49
It is configured in a fixed manner.

Since the retainer plate 47 lightly contacts the pump case 64, there is no eccentricity, which improves the repeat durability of the screw valve 53 and improves the durability of the equipment with this structure.
, which has a remarkable effect.

Furthermore, the piston valve 53 is sandwiched and fixed at its periphery by pump cases 64 and 65, and forms a part of the pump chamber 44.

The torque of the drive motor 54 is increased to a magnitude corresponding to the reduction ratio by a drive pinion 56 fixed to the shaft 55 and a driven gear 57.

The aforementioned piston portion rotates simultaneously with the driven gear 57, and is reciprocated by the eccentric portion 58 which is eccentric with respect to the center shaft 59, with a rotation angle corresponding to twice the amount of eccentricity.

In response to the movement of this piston part, the check valve 45 moves up and down,
A pulsating pressure is created in the pump chamber 44 and is supplied to the toothbrush unit 3 via the flexible conduits 2', 2.

That is, when sucking into the pump chamber 44, the upper check valve 4
5 is lowered, and cleaning water flows in from the gap between the valve seat 46 and the valve seat 46.

Further, during discharge, the check valve 45 rises and seals tightly with the valve seat 46, and the pressurized wash water in the pump chamber 44 is discharged through the flexible conduit 2'.

By repeating this process, the high-pressure pulsating flow from the pump device 1 is passed through the flexible conduit 2 to the toothbrush unit 1-3.
supplied to

In the embodiment of the present invention, the gear is reduced by one stage, but from the viewpoint of the influence of the toothbrush on the teeth and gums, the cleaning effect, and the ease of use, it is desirable that the number of toothbrush strokes be approximately 2000 cycles or less per minute, which consumes less equipment. In order to set an appropriate number of reciprocations and an appropriate torque for the piston section in consideration of the market needs for power reduction, it is necessary to combine the drive motor 54 with a reduction mechanism having an appropriate reduction ratio.

This is because this point is taken into consideration.

The flow rate adjustment device provided in the pump device 1 will be explained.

The pump case 64 is provided with a bypass path 15 for bypassing the pulsating fluid in the pump chamber 44 so that the chamber 44 and the flow path of the inlet above the valve seat 46 communicate with each other.

Further, the pump case 64 is provided in the bypass passage 15.
The valve body 1 is screwed into a threaded part 20 provided on the outer periphery of a partially protruding part, and an O-ring 25 is inserted between the part and the inner periphery of the part.
6 is provided, and the taper valve 18 provided at one end and the valve seat portion 17 of the pump case 64 constitute a valve portion for flow rate adjustment.

The flow rate can be adjusted by rotating the operating knob 6.
The drive gear 19 that engages with the drive gear 19 rotates, and the engagement of the outer gear portion of the drive gear 19 causes the valve body 16 to rotate and slide due to the threaded engagement of the threaded portion 20. This can be done by changing the gap formed between the valve seat portion 17 and the valve seat portion 17.

That is, in the embodiment of the present invention, the power switch is directly connected to the shaft of the drive gear 19, and when the power is OFF and the pump device 1 is stopped, the gap between the drive gear 19 and the valve body 16 is adjusted such that the gap is maximized. The occlusion is set to Sera I.

When the power is turned on using the operating knob 6 and further rotated, the valve body 16 slides due to the above configuration, and the gap gradually becomes smaller, and finally the taper valve 18 and the valve seat 1
7 come into contact with each other, and the bypass path 15 is blocked.

Accordingly, the flexible conduit 2 from the pump chamber 44 described above
The flow rate of the pulsating pressure fluid supplied to the toothbrush section unit 3 via can be adjusted from the minimum when the power is turned on to the maximum by gradually rotating the operating knob 6.

Moreover, the pressure of the pulsating pressure fluid also changes in response to the change in the bypass flow rate, but if the specifications of the valve part, bypass passage 15, etc. are appropriately set, the toothbrush part unit 3 described later
Of course, there is no problem with the operation of the toothbrush, and as explained above, the swing of the toothbrush and the jet stream can be adjusted from weak to strong, and it can be adjusted to suit the health level and preferences of the teeth and gums of a large number of unspecified users. It can be configured as an excellent oral cavity cleaning device that can be used as needed.

Next, the structure and operation of the toothbrush section unit 3 will be explained below with reference to FIGS. 5 to 8.

The toothbrush section unit 3 includes a hydraulic pressure operating section and a motion transmission member 3.
3, and a motion converter, which will be described later.

The hydraulic actuation section responds to the pulsating fluid pressure supplied from the pump device 1 to the chamber 10 via the flexible conduit 2, and transmits the motion transmission member 33 and the toothbrush 8 inserted into the member 33. It is what drives the.

A cylinder 28, an operating screw I/N 30, and a sealing material 38 that is inserted into the piston 30 and comes into contact with the cylinder 28,
It constitutes the hydraulic pressure operating section.

Further, the actuating screw 10 is provided so that the pressure receiving surface 71 forms a part of the chamber 10.

Further, the chamber 10 has a water passage 14 inside, and a flexible conduit 2 is connected to one end of the channel 14 by a member 13, and a joint member is fitted with a sealing material 11 and is engaged and fixed to the case 9. 1
It is also formed by part of 2.

A sealing material 38 is inserted into the operating piston 30,
It slides on the inner wall surface of the cylinder 28.

In this embodiment, the cylinder 28 is inserted into the case 9 via an O-ring 39 using an arbitrary sliding material as a separate piece.
Retained.

Further, a motion transmitting member 33 having a water passage 34 is coaxially integrated with the working piston 30, and a side hole 26 is provided below the member 33, and
It is fitted into the bearing portion 24 and holds the operating screws 1 to 30.

Therefore, the side hole 26 provided below the motion transmission member 33 integrated with the operating screw I/N 30, the member 33,
That is, the bearing part 24 that holds the actuating piston 30 constitutes a valve part that extends from the chamber 10 to the water passage 34 of the motion transmission member 30.

A toothbrush 8 having a water passage 35 and a jet port 35' is inserted into the tip of the motion transmitting member 33 via an OIJ ring 37.

With the above configuration, the pulsating fluid regulated by the operating knob 6 of the pump device 1 is delivered to the chamber via the flexible conduit 2.
0, acts on the actuating piston 30, and slides the side hole 26 of the motion transmitting member 33 so as to come out from the upper end surface of the bearing part 24, the valve part opens, and the chamber 10 and the It communicates with the water passage 34 and is ejected from the jet port 35' of the toothbrush 8.

Furthermore, the working piston 30 can be driven while adjusting the jet flow from zero to maximum.

The operation will be further explained. The operating piston 30 is urged by a spring 68 with the holding member 21 as a seat so as to resist the pulsating flow pressure always acting on the pressure receiving surface 71, 71'.

This is to quickly return the working piston 30 when the pulsating fluid pressure generated in the chamber 10 decreases.

When the power is turned on using the operating knob 6, the pump device 1 supplies pulsating fluid to the toothbrush unit 3 via the flexible conduit 2.

That is, due to the communication between the passageway 14, the chamber 10, the passageway 22, and the chamber 23, the actuating piston 30 receives a force corresponding to the effective action area of the voltage section, and resists the biasing load of the spring 68 to suppress the pulsating fluid. Slide to the position corresponding to the peak value of.

As described above, the pump device 1 is provided with a flow rate adjustment device that is interlocked with the operation knob 6, and by adjusting the bypass amount to the bypass flow path 15, the flow rate of the pulsating fluid to the toothbrush section unit 3 is adjusted.

Even if the operating knob 6 is rotated within a certain range after the power is turned on, the operating piston 30 is rotated within a range where the side hole 26 does not come out from the bearing portion 24 due to the bypass amount.
The valve portion performs reciprocating motion within the closed range.

Therefore, in this range, the jet water flow flowing out from the toothbrush 8 is O, and the swing of the toothbrush 8 gradually increases as the operating knob 6 is rotated after the power is turned on.

Furthermore, when the operating knob 6 is rotated, the amount of pulsating fluid supplied to the toothbrush unit 3 is increased by the flow rate adjustment device, and the valve portions of the aforementioned operating screws 1 to 30 are turned to the “°open” side. It slides so that the chamber 10 and the water passage 34 communicate with each other through the hole 26 .

If the jet is rotated further, by appropriately selecting the specifications of the side hole 26 and the spring 68, a state close to the maximum swing when the jet flow rate is 0 can be maintained.

In this way, the actuating screws 1 to 30 perform reciprocating motion in response to the pulsating fluid pressure supplied from the pump device 1, and the movement transmitting member 33 and the toothbrush 8 inserted into the member 33 The toothbrush 8 can be oscillated up to a certain range depending on the amount of rotation of the operating knob 6, and beyond that, the jet flow amount can be gradually increased from O to the maximum while maintaining the oscillation state.

The setting of the spring 68 allows the piston 30 to operate sufficiently even when the pulsating fluid pressure generated in the chamber 10 is not only a positive and negative sinusoidal periodic pressure, but also a periodic pressure state where the negative pressure is extremely small compared to the positive pressure. Due to the biasing load, the pressure in the PA chamber 10 becomes positive pressure at the time of return.

That is, the spring 68 not only accelerates the return of the operating screws 1 to 30, but also accelerates the return of the operating screws 1 to 30.
It also has a pump function to assist in the outflow of pulsating fluid from the pump.

Furthermore, in order to impart reciprocating spiral motion to the toothbrush 8, a motion conversion section is provided in the hydraulic pressure operating section and the motion transmission member.

The motion conversion section includes a helical guider 70, an operating piston 30, a motion transmission member 33, the screw 30, and the member 3.
3. It is composed of a member 69 that gives rotation to 3.

This will be explained below. The operating screws 1 to 30 are provided with at least one pair of members 69 that provide rotation,
A pair of spiral guide grooves 73 of the spiral guider 70
is engaged with.

The helical guider 70 partially abuts the cylinder 28 and is fixed from above by the holding member 21.

It also serves as a guide for the spring 68.

According to the vertical movement of the operating screw 1~30, the guide groove 73
Since the six members are forced to engage with each other, the motion transmitting member 33 connected to the actuating piston 30 and the toothbrush 8 inserted into the member 33 necessarily perform a helical reciprocating motion.

9 and 10 show the lower bearing portion 24 of the motion transmission member 33 coaxially integrated with the operating screws 1 to 30.
The inlet 27 on the lower end surface held by the valve seat is the valve seat, and the valve body 29
A valve portion from the chamber 10 to the water passage 34 is formed by contacting the chamber 10 with the water passage 34.

In both cases, due to the pulsating flow pressure acting on the chamber 10, the working piston 30 applies a fluid force corresponding to the effective action area defined by the cylinder 28 and the sealing material 38, and the valve body 29 applies a fluid force to the working piston. The valve element 29 is brought into contact with the inlet 27 while receiving a fluid force corresponding to the area of the contact diameter between the lower end surface of the motion transmitting member 30 coaxially integrated with the inlet 30 and the inlet 27. It rises together with the operating screws 1 to 30.

Of course, the piston 30 rises while resisting the bias of the spring 68.

When the amount of sliding of the actuating piston 30 increases and the valve body 29 comes into contact with the lower end surface of the bearing part 24 that holds the lower part of the motion transmission member 33, the notch of the bearing part 24 40 creates a gap between the valve body 29 and the inlet 27.

As a result, the valve section opens ``°'', and the pulsating fluid flows from the chamber 10, through the gap, through the water passage 34, 35', and out of the spout 35' of the toothbrush 8.

Therefore, as shown in FIG. 5, when the operating knob 6 of the pump device 1 is rotated, the toothbrush 8 will no longer emit a jet of water.The vibration of the toothbrush 8 will gradually increase until it maintains a certain maximum appropriate vibration. Gradually, the jet water flow becomes stronger.

In both FIG. 9 and FIG. 10, in the state where no jet water flow comes out, that is, in the range where the valve body 29 does not come into contact with the lower end surface of the bearing part 24, the contact force is maintained by the pulsating pressure when ascending, and conversely when descending. As mentioned above, since the chamber 10 is brought into positive pressure by the spring 68, the contact force is maintained.

FIG. 9 shows that when the valve body 29 comes into contact with the lower end of the bearing part 24,
Since the pressure can be balanced over the entire surface of the valve body 29, the valve body 29 is quickly lowered, and the jet can flow out to the water passage 34 side as long as possible by the pumping action of the spring 68.

Moreover, FIG. 10 shows the operating piston 30 and the valve body 29 during descent.
Spring 32, 32' and spring support plate 51 are provided in order to reduce the impact caused by this.

As described above, the present invention operates from the pump device 1 to the operation knob 6.
A pulsating high-pressure fluid whose flow rate is regulated at a desired flow rate by a flow rate adjusting section connected to the is supplied to the toothbrush section unit 3 via the flexible conduit 2, and is ejected from the jet port 35' of the toothbrush 8. The configuration of the actuating section, the motion transmitting section, and the motion converting section provides a spiral reciprocating motion to the toothbrush 8 in response to pulsating fluid pressure.

That is, as described above, the present invention can easily and reliably provide the cleaning effect of a toothbrush, the effect of removing plaque and foreign matter, and the effect of pine surge using a pulsating jet water stream to an unspecified number of users. It is possible to provide an oral cavity cleaning device that does not cause any trouble or inefficiency during use, can be used easily and reliably, can be cleaned extremely efficiently in a short time, and can exhibit extremely excellent cleaning effects. This makes a great contribution to oral hygiene.

Furthermore, the present invention allows the toothbrush 8 to be turned on while the jet water flow is set to O using an operating knob (linked with the power switch).
The reciprocating rolling motion is made to occur, and it can be used as a simple electric brush even when you want to use kneading or polishing due to habit.In addition, the swing angle can be adjusted, and furthermore, by rotating the operation knob 6. The maximum deflection angle is maintained.The amount of jet water flowing out from the toothbrush 8 can be adjusted from 0 to the maximum.

Therefore, the present invention has a range in which the vibration i% of the toothbrush 8 can be adjusted from minimum to maximum after turning on the power switch with the operation knob 6, and furthermore, the amount of jet water from the toothbrush 8 can be adjusted while maintaining the vibration width. It is possible to provide an oral cavity cleaning device having a range in which the amount can be gradually increased, which is extremely easy to use, and is extremely novel in terms of oral cavity cleaning.

Furthermore, even after the power is turned off, the valve body remains closed and there is no water leakage, and when a jet is normally added, it is pressurized to a certain stalk and then injected in a short period of time, so the jet is strong enough to be maintained. There are advantages to doing so.

[Brief explanation of the drawing]

FIG. 1 is a front view of an oral cavity cleaner according to an embodiment of the present invention, and FIG.
The figure is a sectional view of the pump drive unit, Figures 3 and 4 are sectional views of the pump unit, Figure 5 is a sectional view of the toothbrush unit, Figure 6 is a perspective view of the operating piston, and Figure 7 is a sectional view of the pump unit. FIG. 8 is a perspective view of the spiral guider, FIG. 8 is a sectional view of the toothbrush, and FIGS. 9 and 10 are sectional views of toothbrush units according to other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Pump device, 2... Flexible conduit, 3... Toothbrush unit, 4...
Water tank, 5...outer tank case, 6...operation knob, 8...toothbrush, 9...case, 10...chamber, 13... member, 14...
...Waterway, 15...Bypass road, 16...
... Valve body, 17 ... Valve seat part, 18 ...
... Taper valve, 22 ... Water passage, 23 ...
...Chamber, 26...Side hole, 27...Inflow port, 28...Cylinder, 29...Valve body, 30... Operating piston, 33...Motion transmission member, 34, 35...Conduit passage, 35'.
...Jet port, 42...Valve, 44...
...Pump chamber, 45...Check valve, 46...
... Valve seat, 47 ... Retainer plate, 50.
... Piston rod, 53 ... Piston valve, 54 ... Drive motor, 64, 65 ...
... Pump case, 70 ... Spiral guider, 71
．． 71'...Pressure receiving surface.

Claims (1)

[Scope of Claims] 1. A pump device for supplying a water tank and high-pressure fluid, a hydraulic actuator connected to the pump device through a flexible conduit and actuated by high-pressure fluid pressure, and a hydraulic actuator driven by the actuator to provide movement to the toothbrush. A toothbrush comprising a motion transmitting member, provided with a water passage leading from a hydraulic pressure actuating part to the toothbrush, and having a valve part in the water passage that opens when the actuating member of the hydraulic pressure actuating part moves by a certain amount or more. 1. An oral cavity cleaning device comprising a high-pressure fluid flow rate adjusting device in the pump device. 2. A patent characterized in that the actuating member of the hydraulic actuating part consists of an actuating piston and a motion transmitting member integrated with the piston, and has a passageway leading from a chamber that receives and receives high-pressure water to the toothbrush. The oral cavity cleaner according to claim 1. 3. Claim 2, characterized in that the valve part is composed of a valve seat that is the inlet end face of the operating piston or the inlet end of the motion transmitting member that leads to the toothbrush, and that is in contact with the valve seat. Oral cleaning device as described in section. 4. The oral cavity cleaning device according to claim 2, wherein the valve portion comprises an operating piston or a side hole provided in the motion transmission member, and a bearing portion that holds the operating piston. 5. The valve part is brought into a "closed state" when the valve body and the valve seat part come into contact with each other, and brought into an open state by relating the operating piston or the bearing part that holds the motion transmitting member, and the valve part is brought into an open state when the valve body and the valve seat part come into contact with each other. 4. The oral cavity cleaning device according to claim 3, wherein the mouth cleaning device is configured such that the two mouthpieces communicate with each other. 6. A patent characterized in that when the actuating member slides beyond a set value, the valve body comes into contact with the bearing member, and the valve portion is opened by a gap between the valve body and a notch provided on the lower end surface of the bearing member. The oral cavity cleaner according to claim 5. 7. The oral cavity cleaning device according to claim 5, wherein the valve body is biased by a spring from the water passage side of the operating member so as to resist fluid pressure. 8 The valve body or valve holding member is connected to the inlet end face of the actuating member,
6. The oral cavity cleaning device according to claim 5, wherein the oral cavity cleaning device is biased by a spring so as to increase the contact force when closing with the valve body. 9. The oral cavity cleaner according to claim 1, wherein the flexible conduit constitutes a reciprocating channel for the pulsating high-pressure water. 10. Oral cleaning according to claim 1, wherein the high-pressure fluid is composed of pulsating high-pressure water, and the hydraulic actuating member is configured to reciprocate in accordance with pressure changes of the pulsating high-pressure water. vessel. 11. The oral cavity cleaner according to claim 1, wherein the adjustment device for the pump device has at least a part of its member engaged with a power switch operating member of the pump device. 12. The oral cavity cleaner according to claim 1, wherein the operating piston or the motion transmitting member engages with a motion converting portion made of a spiral guider, converts reciprocating motion into a rolling motion, and transmits the motion to the toothbrush. Deep fryer.